MNI WICONI WTP / CORELINE
South Dakota — Community Water System — PWSID: 084690026
System Information
| PWSID | 084690026 |
| System Name | MNI WICONI WTP / CORELINE |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Aug 8, 2002 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | South Dakota |
| City | FORT PIERRE |
| ZIP Code | 57532 |
| Address | MNI WICONI RWS |
| Organization | BLACKSMITH, RON |
| Phone | 605-295-8252 |
Population & Service
| Population Served | 25 |
| Service Connections | 64 |
Drinking Water Violations (11)
This water system has 11 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2023 | Sep 30, 2023 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Sep 30, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2022 | Nov 30, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Nov 30, 2022 | Revised Total Coliform Rule |
| Nov 1, 2022 | Nov 30, 2022 | Surface Water Treatment Rule | MR | No | Yes | — | — | — | Resolved | Nov 30, 2022 | Surface Water Treatment Rule |
| Sep 29, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 25, 2022 | Lead and Copper Rule |
| Jan 1, 2022 | Dec 31, 2022 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Jan 1, 2022 | Dec 31, 2022 | CYANIDE | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Dec 30, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 4, 2021 | Lead and Copper Rule |
| Nov 1, 2020 | Nov 30, 2020 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Nov 30, 2020 | Revised Total Coliform Rule |
| Nov 1, 2020 | Nov 30, 2020 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Nov 30, 2020 | Revised Total Coliform Rule |
| Jul 1, 2017 | Sep 30, 2017 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Sep 30, 2017 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2017 | Sep 30, 2017 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Sep 30, 2017 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.